Remove default namespace from cord-platform sub-charts

Change-Id: I405ac20d2f9bddad208b8da438f24f32bf424757
diff --git a/xos-core/templates/50-rbac.yaml b/xos-core/templates/50-rbac.yaml
index 7e983b4..fd4bde0 100644
--- a/xos-core/templates/50-rbac.yaml
+++ b/xos-core/templates/50-rbac.yaml
@@ -17,10 +17,7 @@
 kind: ServiceAccount
 metadata:
   name: kubernetes-synchronizer
-
-...
 ---
-
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRoleBinding
 metadata:
@@ -32,4 +29,4 @@
 subjects:
   - kind: ServiceAccount
     name: kubernetes-synchronizer
-    namespace: default
+    namespace: {{ .Release.Namespace }}